Earthing

[wayno60]

guys can i run a common earth wire from nav lights, sounder, stereo, and general lighting back to the battery, from behind the dash?

cheers
wayne

[FNQCairns]

Yep but if that wire goes out they all go out but it's what most seem to do anyway.

cheers fnq

[finga]

You can but I prefer to bring a main negative up to the fuse panel and then use a link to distribute the negative wires to the accessories.
Something like this http://www.biasboating.com.au/p-436-buss-bar.aspx
or this work fine http://www.electricalwholesales.com.au/p/315056/neut-act-link-10-pole-.html
These have insulated feet also. Some will argue that they are not needed but if they're there they won't hurt.
I always use lanolin grease on the connection too to stop any corrosion that might otherwise occur
Cheers Scott :)

[Wahoo]

yep agree with Scotty

Daz

[wayno60]

scotty, yes thats the idea, just run a main back to the neg on the batty